Sedentary behavior (SC) in youth has been presented as a predictor of these young people becoming sedentary adults for the rest of their lives, potentially leading to the onset of chronic diseases. SD directly affects motor behavior, thus reducing the competence in motor skills related to the age group between 3 and 18 years old. The objective of this study was to evaluate the influence of the full-time school environment on gross motor development for six- and seven-year-old schoolchildren. The results reveal that 21.43% are classified as very poor, 73.81% of the evaluated students presented the poor classification, the classifications below average and average obtained only 2.38% of the school children, and it stands out that none of the evaluated students had the motor performance classified as above average, skilled or very skilled. Therefore, it is suggested that the time available for physical activity practice is not enough for the improvement of motor skills.